Table 2.

Positive messages for attaining milestones.

Milestone	Message
Weekly high score badge	“That is your weekly high score! You’re getting better every day.”
Monthly high score badge	“Best score yet this month!”
All-time high score badge	“All-time high score! You did very well.”
Easy ace (easily completes the low-difficulty level)	“You’re learning fast.”
Normal ace (easily completes the difficulty level 5)	“What an improvement! You’ve got it now.”
Hard ace (easily completes the high-difficulty level)	“Great improvement! You just aced a hard difficulty level.”
Playing the game for the first time	“Thanks for playing the game for the first time. Nice going!”
Playing the game 10 times	“That’s the 10th time you’ve played the game. Keep up the great work!”